Tachyon VSNS Lemon 3.2.0 improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Tachyon VSNS Lemon 3.2.0. Affected by this issue is some unknown functionality. This manipulation causes improper authentication. This vulnerability is tracked as CVE-2006-1555. No exploit exists. Additional authentication should be implemented.

Detailsinfo

A vulnerability was found in Tachyon VSNS Lemon 3.2.0. It has been declared as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

VSNS Lemon 3.2.0 allows remote attackers to bypass authentication and access password-protected articles by setting the vsns[topic_id] cookie to the targeted topic.

The weakness was disclosed 03/27/2006 by Aliaksandr Hartsuyeu (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2006-1555 since 03/31/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is possible to mitigate the problem by adding an authentication mechanism.

The vulnerability is also documented in the databases at X-Force (25459), SecurityFocus (BID 17396†), OSVDB (24213†), Secunia (SA19420†) and SecurityTracker (ID 1015836†). The entries VDB-29436 and VDB-29435 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Tachyon

Name

• VSNS Lemon

Version

• 3.2.0

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Authentication
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/27/2006 🔍
03/28/2006 +0 days 🔍
03/28/2006 +0 days 🔍
03/28/2006 +0 days 🔍
03/31/2006 +2 days 🔍
03/31/2006 +0 days 🔍
04/06/2006 +6 days 🔍
03/12/2015 +3262 days 🔍
09/05/2017 +908 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Aliaksandr Hartsuyeu
Status: Not defined

CVE: CVE-2006-1555 (🔍)
GCVE (CVE): GCVE-0-2006-1555
GCVE (VulDB): GCVE-100-29437
X-Force: 25459 - VSNS Lemon cookie authentication bypass
SecurityFocus: 17396 - Tachyondecay VSNS Lemon Authentication Bypass Vulnerability
Secunia: 19420 - VSNS Lemon Multiple Vulnerabilities, Moderately Critical
OSVDB: 24213 - VSNS Lemon Crafted Cookie Authentication Bypass
SecurityTracker: 1015836 - VSNS Lemon Input Validation Holes Let Remote Users Inject SQL Commands and Cross-Site Scripting

See also: 🔍

Entryinfo

Created: 03/12/2015 12:19
Updated: 09/05/2017 08:55
Changes: 03/12/2015 12:19 (58), 09/05/2017 08:55 (8)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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